Step 1. From the Dashboard, click on "Reports"

Step 2. Under Reports, click on "Sales" on the left.

Step 3. In the field saying "Date of Sale", select the period or a specific Date range and click "Search".

Note : The same can be done through "Manage Sales" under "Rewards"

Step 4. Once search results are shown, at the end of the list, click on "Download All from Search"

Step 5. And then click on "Go", the results will be exported as a .csv(Excel) file